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GB1364393A - Manufacture of optical elements - Google Patents

Manufacture of optical elements

Info

Publication number
GB1364393A
GB1364393A GB5395272A GB5395272A GB1364393A GB 1364393 A GB1364393 A GB 1364393A GB 5395272 A GB5395272 A GB 5395272A GB 5395272 A GB5395272 A GB 5395272A GB 1364393 A GB1364393 A GB 1364393A
Authority
GB
United Kingdom
Prior art keywords
blank
profile
supporting
optical elements
releasing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5395272A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips Components Ltd
Original Assignee
Mullard Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mullard Ltd filed Critical Mullard Ltd
Priority to GB5395272A priority Critical patent/GB1364393A/en
Priority to US411761A priority patent/US3922327A/en
Priority to DE19732355091 priority patent/DE2355091A1/en
Priority to JP48129291A priority patent/JPS4984260A/ja
Priority to FR7341434A priority patent/FR2221408A1/fr
Publication of GB1364393A publication Critical patent/GB1364393A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00932—Combined cutting and grinding thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00019—Production of simple or compound lenses with non-spherical faces, e.g. toric faces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S359/00—Optical: systems and elements
    • Y10S359/90—Methods

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

1364393 Optical elements MULLARD Ltd 22 Nov 1972 53952/72 Heading C1M [Also in Division B3] An optical element is produced by supporting a glass blank B with one surface Bs in proximity with a mould M provided with a surface S having a profile which is a negative of a desired optical profile Bg and is magnification thereof, filling the space between with a resin R which shrinks on curing to deform the blank, securing the other outer surface Bs<1> of the deformed blank to a supporting surface D, releasing the first surface from the resin with the blank held deformed by the supporting surface D, optically working flat the one surface Bs, and releasing the worked blank from the surface D so that the worked surface assumes the required profile. Specifcation 1,362,993 is referred to.
GB5395272A 1972-11-22 1972-11-22 Manufacture of optical elements Expired GB1364393A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB5395272A GB1364393A (en) 1972-11-22 1972-11-22 Manufacture of optical elements
US411761A US3922327A (en) 1972-11-22 1973-11-01 Method of manufacture of optical elements
DE19732355091 DE2355091A1 (en) 1972-11-22 1973-11-03 METHOD FOR MANUFACTURING OPTICAL ELEMENTS
JP48129291A JPS4984260A (en) 1972-11-22 1973-11-19
FR7341434A FR2221408A1 (en) 1972-11-22 1973-11-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5395272A GB1364393A (en) 1972-11-22 1972-11-22 Manufacture of optical elements

Publications (1)

Publication Number Publication Date
GB1364393A true GB1364393A (en) 1974-08-21

Family

ID=10469508

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5395272A Expired GB1364393A (en) 1972-11-22 1972-11-22 Manufacture of optical elements

Country Status (5)

Country Link
US (1) US3922327A (en)
JP (1) JPS4984260A (en)
DE (1) DE2355091A1 (en)
FR (1) FR2221408A1 (en)
GB (1) GB1364393A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53125046A (en) * 1977-04-07 1978-11-01 Olympus Optical Co Ltd Production of aspherical face
US4208365A (en) * 1978-12-20 1980-06-17 National Patent Development Corporation Method and apparatus for molding toric contact lenses
FR2449522A1 (en) * 1979-02-20 1980-09-19 Essilor Int MOLDING PROCESS AND CORRESPONDING MOLD, IN PARTICULAR FOR MOLDING OPHTHALMIC LENSES IN ORGANIC MATERIAL
WO1985000060A1 (en) * 1983-06-15 1985-01-03 Neal Keith Jones Thin plastic corrector lenses for optical systems
JPH0764033B2 (en) * 1983-09-07 1995-07-12 ミノルタ株式会社 Junction type optical member and manufacturing method thereof
US4679918A (en) * 1984-10-23 1987-07-14 Ace Ronald S Ophthalmic glass/plastic laminated lens having photochromic characteristics and assembly thereof
JPH07191207A (en) * 1993-11-17 1995-07-28 Asahi Optical Co Ltd Reflection type composite optical element
DE19602736A1 (en) * 1996-01-26 1997-07-31 Inst Mikrotechnik Mainz Gmbh Method and device for producing optical lenses and optical lens arrays
US5908586A (en) * 1997-08-26 1999-06-01 International Business Machines Corporation Method for addressing wavefront aberrations in an optical system
JP5850688B2 (en) * 2011-09-28 2016-02-03 日立オートモティブシステムズ株式会社 Cylinder device manufacturing method
DE102012219655B4 (en) * 2012-10-26 2018-10-25 Albert-Ludwigs-Universität Freiburg OPTICAL ELEMENT AND MANUFACTURE THEREOF

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2911682A (en) * 1955-02-28 1959-11-10 Eastman Kodak Co Method of casting a multireflector prism in a flexible mold
US3211811A (en) * 1964-06-29 1965-10-12 Armorlite Leus Company Inc Method and apparatus for casting thermosetting plastic lenses
DE1704527C3 (en) * 1966-02-15 1978-07-27 Ceskoslovenska Akademie Ved, Prag Process for making non-spherical lenses from a polymer

Also Published As

Publication number Publication date
FR2221408A1 (en) 1974-10-11
DE2355091A1 (en) 1974-05-30
JPS4984260A (en) 1974-08-13
US3922327A (en) 1975-11-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee